/*
 * #%L
 * %%
 * Copyright (C) 2015 Trustsystems Desenvolvimento de Sistemas, LTDA.
 * %%
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 
 * 3. Neither the name of the Trustsystems Desenvolvimento de Sistemas, LTDA. nor the names of its contributors
 *    may be used to endorse or promote products derived from this software without
 *    specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * #L%
 */
package com.tompai.elfinder.service;

import java.nio.file.Paths;
import java.text.Normalizer;
import java.util.Arrays;

import com.tompai.elfinder.configuration.ElfinderConfigurationUtils;
import com.tompai.elfinder.core.Volume;
import com.tompai.elfinder.core.VolumeBuilder;
import com.tompai.elfinder.core.impl.NIO2FileSystemVolume;
import com.tompai.elfinder.exception.VolumeSourceException;

/**
 * Volume Sources supported.
 *
 * @author Thiago Gutenberg Carvalho da Costa
 */
public enum VolumeSources {

	FILESYSTEM {
		@Override
		public VolumeBuilder<?> getVolumeBuilder(String alias, String path) {
			return NIO2FileSystemVolume.builder(alias, Paths.get(ElfinderConfigurationUtils.toURI(path)));
		}

		public VolumeBuilder<?> getVolumeBuilder(String alias, String path, String appkey) {
			return NIO2FileSystemVolume.builder(alias, Paths.get(ElfinderConfigurationUtils.toURI(path)), appkey);
		}
	},

//    ,DROPBOX, GOOGLEDRIVE, ONEDRIVE, ICLOUD
	;

	public static VolumeSources of(String source) {
		if (source != null) {

			final String notLetterRegex = "[^\\p{L}]";
			final String whitespaceRegex = "[\\p{Z}]";
			final String notAsciiCharactersRegex = "[^\\p{ASCII}]";
			final String emptyString = "";

			source = Normalizer.normalize(source, Normalizer.Form.NFD);
			source = source.replaceAll(notLetterRegex, emptyString);
			source = source.replaceAll(whitespaceRegex, emptyString);
			source = source.replaceAll(notAsciiCharactersRegex, emptyString);
			source = source.trim().toUpperCase();

			for (VolumeSources volumesource : values()) {
				if (volumesource.name().equalsIgnoreCase(source)) {
					return volumesource;
				}
				throw new VolumeSourceException("Volume source not supported! The supported volumes sources are: "
						+ Arrays.deepToString(values()).toLowerCase());
			}
		}
		throw new VolumeSourceException("Volume source not informed in elfinder configuration xml!");
	}

	public Volume newInstance(String alias, String path) {
		if (path == null || path.trim().isEmpty())
			throw new VolumeSourceException("Volume source path not informed");
		return getVolumeBuilder(alias, path).build();
	}

	public Volume newInstance(String alias, String path, String appkey) {
		if (appkey == null)
			return newInstance(alias, path);
		return getVolumeBuilder(alias, path, appkey).build();
	}

	public abstract VolumeBuilder<?> getVolumeBuilder(String alias, String path);

	public abstract VolumeBuilder<?> getVolumeBuilder(String alias, String path, String appkey);
}
